%0 Journal Article %A Moreno-Frías, María Ángeles %A Rosales, José Carlos %T The covariety of perfect numerical semigroups with fixed Frobenius number %J Czechoslovak Mathematical Journal %D 2024 %P 697-714 %V 74 %N 3 %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2024.0379-23/ %R 10.21136/CMJ.2024.0379-23 %G en %F 10_21136_CMJ_2024_0379_23